Home / 99,687.62-149,556.65-33,128.09

Finding the Fourth Proportional to 99,687.62, 149,556.65 and 33,128.09

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Solution

The fourth proportional to 99,687.62, 149,556.65 and 33,128.09 is: 49,700.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,687.62 : 149,556.65 = 33,128.09 : x
  2. Step 2: Convert to fraction form
    99,687.62/149,556.65 = 33,128.09/x
  3. Step 3: Cross multiply
    99,687.62x = 149,556.65 × 33,128.09
  4. Step 4: Simplify right side
    99,687.62x = 4,954,525,995.66
  5. Step 5: Solve for x
    x = 4,954,525,995.66/99,687.62
  6. Step 6: Final answer
    x = 49,700.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.